story that has families in california on high alert for a mountain lion back on the prowl. Caught on camera. Helpless dogs proving no match for this clawed killer and gonzalmarci gonzalez has the story. Reporter: This mountain lion preying on pets in a community outside los angeles is back. Mountain lion came by he went through the bench and the bushes herron. Reporter: This home surveillance camera captured these images of the mountain lion earlier this month walking towards the outdoor area where his 80-pound boxer named rocky was sleeping. The dog disappearing, no trace of him ever found. It's been rough, you know, the family is going through emotions. Reporter: Now we've learned just ten days later the mountain lion returned. The next-door neighbors as duke their chihuahua mix was attacked. We saw him. Hopped over with the dog in its mouth. The california fish and wildlife service says the extreme drought is sending more wild animals into residential areas in search of water and food. While wildfire experts explain attacks on humans are rare, neighbors are worried. Demanding that something be done to keep their pets and their families safe. There's a lot of kids in the neighborhood, you know, and it's very dangerous to be out. Now we know it's serious that it's something that has to be taken care of. And the california fish and wildlife service tells abc news under the law they cannot capture and relocate the mountain lion because it's a protected species so for now we're told they're posting flyers and warning residents to be cautious.

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